{
  "id": 6751,
  "label": "dedifferentiated chondrosarcoma",
  "model": {
    "label": "Mondo Disease Ontology (MONDO)",
    "source": 0
  },
  "type_id": 0,
  "reference_id": "MONDO:0005013",
  "properties": {
    "xrefs": [
      "DOID:0081247",
      "EFO:0000394",
      "GARD:0024142",
      "ICDO:9243/3",
      "MEDGEN:209021",
      "NCIT:C6476",
      "ONCOTREE:DDCHS",
      "UMLS:C0862878"
    ],
    "synonyms": [
      "Dedifferentiated chondrosarcoma",
      "DDCHS"
    ],
    "categories": [
      {
        "ref": "MONDO:0002081",
        "name": "musculoskeletal system disorder"
      },
      {
        "ref": "MONDO:0003900",
        "name": "connective tissue disorder"
      }
    ],
    "definition": "An aggressive morphologic variant of chondrosarcoma. It is composed of a low grade chondrosarcoma and a high grade non-cartilagenous sarcomatous component. Due to the aggressive nature of the disease, its prognosis is poor."
  },
  "isLeaf": true,
  "isRoot": false,
  "child_count": 0,
  "parents": [
    {
      "id": 2966,
      "label": "bone chondrosarcoma",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        4262,
        10235
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:0050897",
          "GARD:0022784",
          "MEDGEN:756255",
          "UMLS:C3163843"
        ],
        "synonyms": [
          "bone tissue chondrosarcoma (disease)",
          "chondrosarcoma (disease) of bone tissue"
        ],
        "categories": [
          {
            "ref": "MONDO:0002081",
            "name": "musculoskeletal system disorder"
          },
          {
            "ref": "MONDO:0003900",
            "name": "connective tissue disorder"
          }
        ],
        "definition": "A chondrosarcoma (disease) that involves the bone tissue."
      },
      "child_count": 6,
      "reference_id": "MONDO:0000515"
    },
    {
      "id": 20297,
      "label": "bone sarcoma",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        4262,
        6816
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:0080639",
          "GARD:0020547",
          "ICD9:170.9",
          "MEDGEN:352831",
          "MedDRA:10006007",
          "NCIT:C9312",
          "Orphanet:223727",
          "SCTID:448710000",
          "UMLS:C1704327"
        ],
        "synonyms": [
          "bone sarcoma",
          "osseous sarcoma",
          "sarcoma of bone",
          "sarcoma of the bone",
          "skeletal sarcoma"
        ],
        "categories": [
          {
            "ref": "MONDO:0002081",
            "name": "musculoskeletal system disorder"
          },
          {
            "ref": "MONDO:0003900",
            "name": "connective tissue disorder"
          }
        ],
        "definition": "A sarcoma that arises from the bone. Representative examples are osteosarcoma and chondrosarcoma."
      },
      "child_count": 26,
      "reference_id": "MONDO:0021054"
    }
  ],
  "children": [],
  "roots": [
    {
      "id": 2966,
      "label": "bone chondrosarcoma"
    },
    {
      "id": 20297,
      "label": "bone sarcoma"
    }
  ]
}